--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/reference/ocr-new/BitMap.h	Thu May 18 23:12:51 2006 +0200
@@ -0,0 +1,78 @@
+#ifndef _BITMAP_H
+#define _BITMAP_H
+#include "system.h"
+
+/** A BitMap representation stores image in an array of unsigned character
+    arrays.  There is one uchar array per row.  Each bit of the uchar 
+    represents a pixel.
+***/
+
+
+class RLEMap;
+class Point;
+class BitMap;
+
+extern void byteprint(char d);
+extern void bitprint(char d, int x);
+
+
+class BitMap{
+ public:
+  friend MapStatus convertMap(RLEMap *,BitMap*,Point,Point);
+  friend MapStatus convertMap(BitMap *,RLEMap*,Point,Point);
+
+  BitMap();
+
+  ~BitMap();
+
+  int & imageLength() 
+    {return fImageLength;};
+
+  int & imageWidth()
+    {return fImageWidth;};
+
+  readBit(Point  p);
+
+  MapStatus & status()
+    {return fStatus; };
+
+  uchar * row(int i);         // returns a pointer to row i
+
+
+  // I/O operations.  readMap and writeMap are from/to 2 level TIFF files
+
+  MapStatus readMap(char * filename);
+  MapStatus writeMap(char * filename);   // not done
+    
+  // Write out BitMap format for TCL/TK display
+  MapStatus writeTclMap(char * filename, Point  ul, Point  lr, int scaledown);
+  // Detect skew Angle 
+  Angle skewAngle();
+ 
+  //Rotate the map designated angle.  
+  MapStatus rotateMap(Angle angl); 
+  
+
+  // Return a ratio of black pixels to white pixels
+  // scaled to 255 0 = all white 255=all black
+  short int grayScale(Point  ul, Point  lr);
+
+  // number of black pixels in bounding box
+  const int BitMap::pixelsInRegion( Point ul, Point lr);
+  int BitMap::minThickness(Point  ul,  Point  lr);
+private:
+ 
+
+	int fImageWidth;
+	int fImageLength;
+	MapStatus fStatus;
+	uchar ** fMapData;
+
+} ;
+
+
+
+#endif
+
+
+